<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<header> <h2>网页头部</h2></header>	
	
<section> <h2>网页主体</h2></section>	
	
<footer> <h2>网页脚部</h2></footer>
</body>
</html>